Cov txheej txheem:

SQL Server failover pawg installation yog dab tsi?
SQL Server failover pawg installation yog dab tsi?

Video: SQL Server failover pawg installation yog dab tsi?

Video: SQL Server failover pawg installation yog dab tsi?
Video: How CDC Works in Azure SQL Server Managed Instance | Change Data Capture In Managed Instance 2024, Kaum ib hlis
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Rau nruab los yog upgrade a SQL Server failover pawg , koj yuav tsum khiav lub Teeb tsa program nyob rau txhua qhov ntawm cov faiv fab pawg . Nodes ntawm cov subnets sib txawv - Qhov chaw nyob IP chaw nyob yog teem rau LOSSIS thiab qhov kev teeb tsa no hu ua SQL Server ntau subnet faiv fab pawg kev teeb tsa.

Ib yam li ntawd, nws tau nug, SQL Server tsis ua haujlwm li cas?

Txhais: A faiv fab pawg hauv paus muab koj lub peev xwm kom muaj tag nrho cov ntaub ntawv rau a SQL Server piv txwv ntsia rau hauv ib yam dab tsi zoo li ib qho kev qhia uas ua tau nkag tau los ntawm qhov sib txawv servers . Nws yuav ib txwm muaj tib lub npe piv txwv, SQL ntawv Cov haujlwm ua haujlwm, Txuas Cov servers thiab Logins nyob qhov twg koj nqa nws.

Ib sab saum toj no, dab tsi yog qhov txiaj ntsig ntawm pawg tsis ua haujlwm? Failover kev txhawb nqa kom ntseeg tau tias lub lag luam txawj ntse tseem muaj rau siv yog tias muaj kev thov lossis kho vajtse tsis ua haujlwm. Ua pawg muab ua tsis tiav kev txhawb nqa nyob rau hauv ob txoj kev: Load redistribution: Thaum ib lub node ua tsis tiav, cov hauj lwm uas nws yog lub luag hauj lwm yog coj mus rau lwm lub node los yog set ntawm nodes.

Kuj Paub, ua li cas koj pawg hauv SQL?

Clustering cov kauj ruam

  1. Teeb tsa cov drives sib koom thiab network siv rau pawg.
  2. Tsim cov pawg.
  3. Configure pawg.
  4. Nruab SQL Server ntawm pawg.
  5. Configure pawg drives.
  6. Nruab qhov tsim nyog Windows thiab SQL Server cov kev pabcuam pob.

Server clustering ua haujlwm li cas?

Server clustering hais txog ib pawg ntawm servers ua haujlwm ua ke ntawm ib qho system los muab cov neeg siv khoom muaj ntau dua. Cov no pawg yog siv los txo downtime thiab outages los ntawm kev tso cai rau lwm tus server los tuav hauv qhov xwm txheej ntawm qhov hluav taws xob.

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